130976 20240202151703.0 sideral 136653 ART-2021-136653 eng García-Camprubí, María Numerical approach for the assessment of micro-textured walls effects on rubber injection moulding 2021 Micro-surface texturing of elastomeric seals is a validated method to improve the friction and wear characteristics of the seals. In this study, the injection process of high-viscosity elastomeric materials in moulds with wall microprotusions is evaluated. To this end, a novel CFD methodology is developed and implemented in OpenFOAM to address rubber flow behaviour at both microscale and macroscale. The first approach allows analyzing the flow perturbation induced by a particular surface texture and generate results to calculate an equivalent wall shear stress that is introduced into the macroscale case through reduced order modelling. The methodology is applied to simulate rubber injection in textured moulds in an academic case (straight pipe) and a real case (D-ring seal mould). In both cases, it is shown that textured walls do not increase the injection pressure and therefore the manufacturing process is not adversely affected. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/EC/H2020/768705/EU/FRICTION OPTIMISATION OF SEALS THROUGH ADVANCED LASER SURFACE TEXTURING OF MOULDS/MouldTex This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 768705-MouldTex info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.967 2021 POLYMER SCIENCE 16 / 90 = 0.178 2021 Q1 T1 0.726 2021 Polymers and Plastics 2021 Q1 Chemistry (miscellaneous) 2021 Q1 5.7 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Alfaro-Isac, Carmen Hernández-Gascón, Belén Valdés, José Ramón Izquierdo, Salvador (orcid)0000-0001-6906-9143 13, 11 (2021), 1739 [20 pp.] Polymers (Basel) Polymers 2073-4360 1386285 http://zaguan.unizar.es/record/130976/files/texto_completo.pdf Versión publicada 2799214 http://zaguan.unizar.es/record/130976/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:130976 articulos driver 2024-02-02-14:50:39 ARTICLE